Tallon Griekspoor saved four match points in upsetting top seed Daniil Medvedev 2-6, 7-6 (7), 7-5 in the quarterfinals at the Dubai Tennis Championships on Thursday. The Dutchman advanced to his eighth career ATP Tour semifinal (3-4 record) in knocking off Russia's Medvedev,

Griekspoor came from behind to triumph 2-6 7-6 (9-7) 7-5 over the Russian at the Dubai Tennis Championships on Thursday. Medvedev had four match points across Griekspoor's final two service games of the second set, yet each one was clawed back.

Top-seeded Daniil Medvedev didn't have time to think about how to return Giovanni Mpetshi Perricard's blazing serves Wednesday at the Dubai Championships. But Medvedev still reached the quarterfinals after a 6-4,